检索结果-南通市图书馆

Morphological and Molecular Data Revealed One New Species of the Short-legged Toads Brachytarsophrys Tian and Hu,1983(Anura,Megophryidae)from Yunnan,China

引用

Asian herpetological Research 2024年第1期15卷 22-30页

作者： yanhong he Renda AI Junkai HUANG Xianqi LI Xiaolong LIU Junlin LAN Jinmin CheN Zhiyong YUAN Key Laboratory of Freshwater Fish Reproduction and Development(Ministry of Education) School of Life SciencesSouthwest UniversityChongqing 400715China Key Laboratory for Conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunming 650224YunnanChina Guangxi Key Laboratory of Rare and Endangered Animal Ecology Guangxi Normal UniversityGuilin 541004GuangxiChina Wenshan National Nature Reserve of Yunnan Province Wenshan 663099YunnanChina Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources College of Life SciencesAnhui Normal UniversityWuhu 241000AnhuiChina

A new species of the genus Brachytarsophrys,named Brachytarsophrys wenshanensis sp.nov.,has been identified in southeastern Yunnan,China.This new species can be readily distinguished from other known congeners by both morphological criterion and molecular analysis of three mitochondrial gene segments:16S,COI,and Cytb.This classification is based on the following morphological characters:(1)medium body size(SVL 83.8–85.1 mm in two adult males);(2)enormous head,with head width nearly 1.2 times the length;(3)tongue pyriform,feebly notched;(4)non-meeting heels;(5)male lacking nuptial pad;(6)tibiotarsal articulation reaching angle of mouth when hindlimbs are extended forward alongside the body;(7)absence of outer metatarsal tubercle,inner metatarsal tubercle elliptic and approximately equal to first toe;(8)rudimentary toe webbing,webbing formula:Ⅰ(2–)–(2^(++))Ⅱ(2^(–))–(3^(++))Ⅲ(2^(½))–(4)Ⅳ(4^(+))–(2^(⅔))V;(9)lateral fringes narrow;(10)dermal ridge or glandular fold on dorsum absent;(11)pectoral glands distinct and irregular,femoral gland small.Our work increases the number of species within the genus Brachytarsophrys to 9.

关键词： amphibians molecular phylogeny species diversity taxonomy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Integration of early disease-resistance phenotyping, histological characterization, and transcriptome sequencing reveals insights into downy mildew resistance in impatiens

引用

Horticulture Research 2021年第1期8卷 1473-1494页

作者： Ze Peng yanhong he Saroj Parajuli Qian You Weining Wang Krishna Bhattarai Aaron JPalmateer Zhanao Deng University of Florida IFASDepartment of Environmental HorticultureGulf Coast Research and Education Center14625 County Road 672WimaumaFL 33598USA State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural University510642 GuangzhouChina Visiting scholar at University of Florida IFASDepartment of Environmental HorticultureGulf Coast Research and Education Center14625 County Road 672WimaumaFL 33598USA Key Laboratory of Horticultural Plant Biology Ministry of EducationCollege of Horticulture and Forestry SciencesHuazhong Agricultural University430070 WuhanHubeiChina University of Florida IFASDepartment of Plant PathologyTropical Research and Education Center18905 S.W.280th StreetHomesteadFL 33031USA Present address:Bayer Environmental Science US 5000 Centregreen WayCaryNC 27513USA

Downy mildew(DM),caused by obligate parasitic oomycetes,is a destructive disease for a wide range of crops worldwide.Recent outbreaks of impatiens downy mildew(IDM)in many countries have caused huge economic losses.A system to reveal plant–pathogen interactions in the early stage of infection and quickly assess resistance/susceptibility of plants to DM is desired.In this study,we established an early and rapid system to achieve these goals using impatiens as a model.Thirty-two cultivars of Impatiens walleriana and I.hawkeri were evaluated for their responses to IDM at cotyledon,first/second pair of true leaf,and mature plant stages.All I.walleriana cultivars were highly susceptible to IDM.While all I.hawkeri cultivars were resistant to IDM starting at the first true leaf stage,many(14/16)were susceptible to IDM at the cotyledon stage.Two cultivars showed resistance even at the cotyledon stage.Histological characterization showed that the resistance mechanism of the I.hawkeri cultivars resembles that in grapevine and type II resistance in sunflower.By integrating full-length transcriptome sequencing(Iso-Seq)and RNA-Seq,we constructed the first reference transcriptome for Impatiens comprised of 48,758 sequences with an N50 length of 2060 bp.Comparative transcriptome and qRT-PCR analyses revealed strong candidate genes for IDM resistance,including three resistance genes orthologous to the sunflower gene RGC203,a potential candidate associated with DM resistance.Our approach of integrating early disease-resistance phenotyping,histological characterization,and transcriptome analysis lay a solid foundation to improve DM resistance in impatiens and may provide a model for other crops.

关键词： cultivar mildew crops

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Metamorphism of the northern Liaoning Complex:Implications for the tectonic evolution of Neoarchean basement of the Eastern Block,North China Craton

引用

Geoscience Frontiers 2013年第3期4卷 305-320页

作者： Kam Kuen Wu Guochun Zhao Min Sun Changqing Yin yanhong he Pui Yuk Tam Department of Earth Sciences James Lee Science BuildingThe University of Hong Kong Department of Earth and Environmental Sciences University of Waterloo200 University Avenue WestWaterlooOntarioCanada Department of Geology North West University

As one of the areas where typical late Archean crust is exposed in the Eastern Block of the North China Craton, the northern Laioning Complex consists principally of tonalitic-trondhjemitic-granodioritic （TTG） gneisses, massive granitoids and supracrustal rocks. The supracrustal rocks, named the Qingyuan Group, consist of interbedded amphibolite, hornblende granulite, biotite granulite and BIF. Petrological evidence indicates that the amphibolites experienced the early prograde （M1）, peak （M2） and post-peak （M3） metamorphism. The early prograde assemblage （M1） is preserved as mineral inclusions, represented by actinotite ＋ hornblende - plagioclase ＋ epidote ＋ quartz 4- sphene, within garnet porphyroblasts. The peak assemblage （M2） is indicated by garnet ＋ clinopyroxene ＋ hornblende ＋ plagioclase ＋ quartz ＋ ilmenite, which occur as major mineral phases in the rock. The post-peak assemblage （M3） is characterized by the garnet 4- quartz symplectite. The P-T pseudosections in the NCFMASHTO system constructed by using TheRMOCALC define the P-T conditions of M1, M2 and M3 at 490-550 C＋（4.5 kbar, 780 810 C/7.65- 8.40 kbar and 630-670 ＋C]8.15-9.40 kbar, respectively. As a result, an anticlockwise P-T path involving isobaric cooling is inferred for the metamorphic evolution of the amphibolites. Such a P-T path suggests that the late Archean metamorphism of the northern Liaoning Complex was related to the intrusion and underplating of mantle-derived magmas. The underplating of voluminous mantle-derived magmas leading to metamorphism with an anticlockwise P-T path involving isobaric cooling may have occurred in continental magmatic arc regions, above hot spots driven by mantle plumes, or in continental rift envi- ronments. A mantle plume model is favored because this model can reasonably interpret many other geological features of late Archean basement rocks from the northern Liaoning Complex in the Eastern Block of the North China Craton as well as their anticlockwise P-T paths involving isobaric cooling.

关键词： Amphibolites Northern Liaoning complex North China Craton Late Archean Metamorphic evolution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

长柄扁桃对土壤干旱的生理响应

引用

分子植物育种 2024年第8期22卷 2756-2761页

作者：林姝婧何炎红王昭才林涛内蒙古农业大学林学院呼和浩特010020 内蒙古自治区林业和草原督察保障中心呼和浩特010000

通过盆栽试验研究不同程度的干旱胁迫下长柄扁桃(Amygdalus pcdunculata Pall)的生理生化指标的变化。结果表明,丙二醛(malondialdehyde,MDA)、可溶性蛋白和叶绿素对土壤水分变化较敏感。随着土壤干旱胁迫程度的增加,过氧化物酶(peroxid... 详细信息

通过盆栽试验研究不同程度的干旱胁迫下长柄扁桃(Amygdalus pcdunculata Pall)的生理生化指标的变化。结果表明,丙二醛(malondialdehyde,MDA)、可溶性蛋白和叶绿素对土壤水分变化较敏感。随着土壤干旱胁迫程度的增加,过氧化物酶(peroxidase,POD)与超氧化物歧化酶(superoxide dismutase,SOD)活性在干旱胁迫下的变化趋势大致相同,总体呈先升高后降低的变化趋势,但二者高峰期不同。叶绿素的含量表现出先升后降的趋势,在胁迫初期,迅速升高而后又开始下降。这表明,在干旱条件下长柄扁桃会通过提高MDA、叶绿素的含量以及提高保护酶POD、SOD的活性来忍耐土壤干旱胁迫的伤害。

关键词：长柄扁桃干旱胁迫丙二醛叶绿素保护酶

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

U-Pb Zircon Dating of the Granitic Conglomerates of the Hutuo Group:Affinities to the Wutai Granitoids and Significance to the Tectonic Evolution of the Trans-North China Orogen

引用

Acta Geologica Sinica(English Edition) 2006年第6期80卷 886-898页

作者： Jian ZHANG Guochun ZHAO LI Sanzhong Min SUN LIU Shuwen Xiaoping XIA yanhong he Department of Earth Sciences The University of Hong Kong Pokfulam Road Hong Kong College of Marine Geosciences Ocean University of China Qingdao Shandong 266003 School of Earth and Space Sciences Peking University Beijing 100871

The Wutai Complex associated with the adjacent Fuping and hengshan Complexes represents the best and dassical cross-section in the middle segment of the Trans-North China Orogen, generally divided into Eastern and Western Blocks. Unconformably overlying the Wutai and Fuping Complexes is the Hutuo Group considered as the youngest lithostratigraphic unit in the region and important both for interpreting Precambrian history as well as the overall evolution of the Trans-North China Orogen. Lack of knowledge about provenance of the sedimentary rocks in this group has hindered understanding of the depositional environments and tectonic significance. LA-ICP-MS was applied to obtain U-Pb zircon ages for the granitic pebbles, the lowest lithostratigraphic rock of the Hutuo Group, which, combined with previous lithostratigraphic, geochronological, structural and metamorphic data, provides new constraints on the sedimentary provenance and tectonic evolution of the region. The sequence of the Hutuo Group ranges upward from lower basal conglomerates and volcaniclastic rocks （Doucun Subgroup）, through clastic sediments, slates, dolomites and marbles （Dongye Subgroup）, to sandstones and conglomerates at the top （Guojiazhai Subgroup）. Zircons from granitic pebbles preserved in the Doucun Subgroup basal conglomerates give weighted mean ^207pb/^206pb ages between 2517 Ma and 2566 Ma, which are the same as those for the late Archean Wutai Granitoids, indicating that the pebbles were derived from the Wutai granitic intrusions （2566-2515 Ma）. Based on the new data and previous studies, combined with an igneous zircon crystallization age of 2087±9 Ma obtained for volcanics in the Hutuo Group, the Hutuo Group was deposited in a subduction-related retro-arc foreland basin environment that developed behind the Wutai arc during the eastward-directed subduction of the Western Block beneath the western margin of the Eastern Block. This basin underwent long-lived sedimentation and finally closed during the -1850 Ma collisional event that res

关键词： Trans-North China Orogen Paleoproterozoic Wutai Complex Hutuo Group conglomerates

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

U-Pb Age and Hf Isotope Study of Detrital Zircons from the Wanzi Supracrustals:Constraints on the Tectonic Setting and Evolution of the Fuping Complex,Trans-North China Orogen

引用

Acta Geologica Sinica(English Edition) 2006年第6期80卷 844-863页

作者： Xiaoping XIA Min SUN Guochun ZHAO WU Fuyuan XU Ping Jian ZHANG yanhong he ZHANG Jiheng Department of Earth Sciences the University of Hong Kong Pokfulam Road Hong Kong Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029

Located in the middle segment of the Trans-North China Orogen, the Fuping Complex is considered as a critical area in understanding the evolution history of the North China Craton （NCC）. The complex is composed of various high-grade and multiply deformed rocks, including gray gneiss, basic granulite, amphibolite, fine-grained gneiss and marble, metamorphosed to upper amphibolite or granulite facies. It can be divided into four rock units： the Fuping TTG gneisses, Longquanguan augen gneisses, Wanzi supracrustals, and Nanying granitic gneisses. U-Pb age and Hf isotope compositions of about 200 detrital zircons from the Wanzi supracrustals of the Fuping Complex have been analyzed. The data on metamorphic zircon rims give ages of 1.82-1.84 Ga, corresponding to the final amalgamation event of the NCC, whereas the data for igneous zircon cores yield two age populations at -2.10 and -2.51 Ga, with some inherited ages scattering between 2.5 and 2.9 Ga. These results suggest that the Wanzi supracrustals were derived from the Fuping TTG gneisses （-2.5 Ga） and the Nanying granitic gneisses （2.0-2.1 Ga） and deposited between 2.10 and 1.84 Ga. All zircons with -2.51 Ga age have positive initial εHf values from ＋1.4 to ＋10.9, suggesting an important crustal growth event at -2.5 Ga through the addition of juvenile materials from the mantle. The Hf isotope data for the detrital zircons further imply that the 2.8 Ga rocks are important components in the lower crust, which is consistent with a suggestion from Nd isotope data for the Eastern Block. The zircons of 2.10 Ga population have initial εHf values of-4.9 to ＋6.1, interpreted as mixing of crustal re-melt with minor juvenile material contribution at 2.1 Ga. These results are distinct from that for the Western Block, supporting that the Fuping Complex was emplaced in a tectonic active environment at the western margin of the Eastern Block.

关键词： detrital zircons U-Pb age and Hf isotope Fuping Complex North China Craton

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

What Happened in the Trans-North China Orogen in the Period 2560-1850 Ma?

引用

Acta Geologica Sinica(English Edition) 2006年第6期80卷 790-806页

作者： Guochun ZHAO LIU Shuwen Min SUN LI Sanzhong Simon WILDE Xiaoping XIA Jian ZHANG yanhong he Department of Earth Sciences The University of Hong Kong Pokfulam Road Hong Kong China The Key Laboratory of Orogenic Belts and Crustal Evolution Ministry of Education China School of Earth and Space Sciences Peking University Beijing 100871 China College of Marine Geosciences Ocean University of China Qingdao Shandong 266003 China Department of Applied Geology Curtin University of Technology Bentley 6102 Western Australia Australia

The Trans-North China Orogen （TNCO） was a Paleoproterozic continent-continent collisional belt along which the Eastern and Western Blocks amalgamated to form a coherent North China Craton （NCC）. Recent geological, structural, geochemical and isotopic data show that the orogen was a continental margin or Japan-type arc along the western margin of the Eastern Block, which was separated from the Western Block by an old ocean, with eastward-directed subduction of the oceanic lithosphere beneath the western margin of the Eastern Block. At 2550-2520 Ma, the deep subduction caused partial melting of the medium-lower crust, producing copious granitoid magma that was intruded into the upper levels of the crust to form granitoid plutons in the low- to medium-grade granite-greeustone terranes. At 2530-2520 Ma, subduction of the oceanic lithosphere caused partial melting of the mantle wedge, which led to underplating of mafic magma in the lower crust and widespread mafic and minor felsic volcanism in the arc, forming part of the greenstone assemblages. Extension driven by widespread mafic to felsic volcanism led to the development of back-arc and/or intra-arc basins in the orogen. At 2520-2475 Ma, the subduction caused further partial melting of the lower crust to form large amounts of tonalitic-trondhjemitic-granodioritic （TTG） magmatism. At this time following further extension of back-arc basins, episodic granitoid magmatism occurred, resulting in the emplacement of 2360 Ma, -2250 Ma 2110-21760 Ma and -2050 Ma granites in the orogen. Contemporary volcano-sedimentary rocks developed in the back-arc or intra-are basins. At 2150-1920 Ma, the orogen underwent several extensional events, possibly due to subduction of an oceanic ridge, leading to emplacement of mafic dykes that were subsequently metamorphosed to amphibolites and medium- to high-pressure mafic granulites. At 1880-1820 Ma, the ocean between the Eastern and Western Blocks was completely consumed by subduction, and the dosing of the ocean led to the continent-arc-c

关键词： Archean Paleoproterozoic subduction collision Tram-North China Orogen North China Craton

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CPTA treatment reveals potential transcription factors associated with carotenoid metabolism in flowers of Osmanthus fragrans

引用

Horticultural Plant Journal 2021年第5期7卷 479-487页

作者： Wan Xi yanhong he Linlin Zhu Shiyang Hu Shuyi Xiong Yi Zhang Jingjing Zou Hongguo Chen Caiyun Wang Riru Zheng Key Laboratory of Horticultural Plant Biology Ministry of EducationCollege of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Key Laboratory of Urban Agriculture in Central China Ministry of Agriculture and Rural AffairsWuhan 430070China Hubei Engineering Research Center for Fragrant Plants Hubei University of Science and TechnologyXianningHubei 430070China

Osmanthus fragrans is one of the top ten traditional flowers in China.It is divided into three different groups according to its color.α-Carotene and β-carotene are the main determinants to distinguish the color differences between three groups.However,the dominant genes and transcription factors involved in carotenoid metabolism remain unclear.CPTA treatment(0.7mmol·L−1)remarkably promoted lycopene,α-carotene and β-carotene contents in flowers.Transcriptome sequencing analysis revealed that CPTA treatment could trigger chain reactions in carotenoid metabolism pathway genes.Four up-regulated and 10 down-regulated transcription factors which have close association with carotenoid variation were significantly induced by CPTA treatment.The up-regulated TFs such as MYB43,MYB123,HSF,were further subjected to transcript expression determination in different cultivars with drastic colors.Among them,transcript expression of four up-regulated TFs coincided with the carotenoid accumulation in different cultivars.We selected up-regulated OfMYB43 to verify its function,which is related to stress tolerance and transcriptional regulation.Transient overexpression of OfMYB43 in O.fragrans flowers showed that it could remarkably promote the expression of PDS,ZISO,LCYE and CCD4,leading to increased accumulation of β-branch carotenoids.OfMYB43 was a potential positive regulator of carotenoid biosynthesis in O.fragrans flowers.This study provides insight into the molecular mechanism of carotenoid metabolism in O.fragrans.

关键词： Osmanthus fragrans CPTA Carotenoid Transcriptome sequencing Transcription factor OfMYB43

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中医药文化在越南传播的历程、价值与发展思考

引用

云南师范大学学报（对外汉语教学与研究版） 2024年第3期22卷 59-65页

作者：桑骏凯何艳红云南师范大学国际汉语教育学院昆明650000 红河卫生职业学院公共课部蒙自661199

中医药文化是中华优秀传统文化的重要组成部分,是增强中国国际话语权的重要文化符号。越南是汉字文化圈内的重要国家,中医药文化在越南的传播具有其独特性和典型性。根据中医药文化在越南的传播过程及特点的不同,将其分为接触与显现、... 详细信息

中医药文化是中华优秀传统文化的重要组成部分,是增强中国国际话语权的重要文化符号。越南是汉字文化圈内的重要国家,中医药文化在越南的传播具有其独特性和典型性。根据中医药文化在越南的传播过程及特点的不同,将其分为接触与显现、选择与采纳、转型与发展、融合与繁荣四个历史阶段。在新时代背景下,中医药文化对越传播具有持续推动文明互鉴的文化价值、服务国家战略的政治价值、实现互利共赢的经济价值和推进中华文化“走出去”的创新价值。从加强中医药文化传播顶层设计,提炼文化传播故事,创新文化传播路径,夯实文化传播队伍四方面着手发力,推进中华文化在越南高质量传播,助推中华文化国际传播稳步推广和中医药高质量融入共建“一带一路”发展。

关键词：中医药国际传播越南汉字文化圈中华文化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Comparative transcriptome analysis of different heat stress responses between self-root grafting line and heterogeneous grafting line in rose

引用

Horticultural Plant Journal 2021年第3期7卷 243-255页

作者： Wenquan Qi Chunling Zhang Wenjing Wang Zhe Cao Song Li Hang Li Wan Zhu Yongqi Huang Manzhu Bao yanhong he Riru Zheng Key Laboratory of Horticultural Plant Biology Ministry of EducationCollege of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Key Laboratory of Urban Agriculture in Central China Ministry of AgricultureWuhan 430070China Crop Development Centre Development of Plant SciencesUniversity of SaskatchewanSaskatoon S7N5A8Canada

Rose is sensitive to high temperature which will make the rose go into a semi-dormancy state.Grafting is an excellent way to enhance rose heat tolerance.here,heat-tolerant Rosa multiflora‘Huanong Wuci 1'(W)and heat-sensitive Rosa chinensis‘Old Blush’(X)were selected as experimental materials.The RNA-seq technique was used to investigate the transcriptomes of self-root grafting line(XX0),heterogeneous grafting line(XW0),self-root grafting line under 6 h heat stress(XX6),and heterogeneous grafting line under 6 h heat stress(XW6).Under high temperature stress,multiple signaling pathways were activated,moreover,a large number of transcription factors and functional genes were induced,especially the HSFs and HSPs with remarkably upregulated expression levels.The GO analysis showed that the differences in the expressions of the genes related to fatty acids and carbohydrates were observed between self-root grafting line and heterogeneous grafting line.In addition,14 P450s were differentially expressed,and one lectin gene was up-regulated in XW0 vs XW6,but down-regulated in XX0 vs XX6.Considering physiological and biochemical traits such as relative electrolyte leakage,SOD activity,proline,and total soluble sugars,DEGs involved in these processes may be key factors to resist high temperature.The present study provides an insight into the complex mechanism underlying grafting in response to heat stress.Our results indicate that grafting is an effective way to improve rose heat resistance.

关键词： Rose heat stress Grafting Transcriptome

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：